Martyr's Memorial A-Division League, (Nepali: शहीद स्मारक ए- डिभिजन लिग; formerly known as the Kathmandu League Championship), also known as the Qatar Airways Martyr's Memorial A-Division League for sponsorship reasons, is a professional football league in Nepal and the highest level of football in Nepal.

Administered and organized by All Nepal Football Association, it is contested by 14 teams, it operates on a system of promotion and relegation with the Martyr's Memorial B-Division League. The season usually runs from November to March with each team playing every other team twice.

A new Nepal National League was created in 2011 to give a chance to compete at A level tournaments to the clubs outside Kathmandu valley. There were 9 clubs competing in the National League, 5 of which are teams of Martyr's Memorial A-Division League.

Champion of the league for the season is granted qualification into the Asian continental club competition, the AFC Challenge League.

Nepal Division 1 is a premier football tournament that showcases the talent and competitive spirit of Nepalese football. As the second tier of the national football league system, it features emerging clubs vying for promotion to the top-tier Nepal Super League. The tournament brings together passionate teams from across the country, offering thrilling matches, intense rivalries, and a platform for local players to demonstrate their skills. With a rich history of fostering football development in Nepal, the Nepal Division 1 continues to be a vital stepping stone for aspiring athletes and a celebration of the nation's growing football culture.